如何將數字拆分爲金錢格式？

Question

例如：

12000 = 12 000 
5000 = 5 000 
1000000 = 1 000 000 
20000000 = 20 000 000 

沒有JavaScript :)

Answer 1

使用number_with_delimiter(12000, :delimiter => ' ')

Answer 2

你好這就是你正在尋找：

http://api.rubyonrails.org/classes/ActionView/Helpers/NumberHelper.html

像 - number_to_currency（1234567890.506， ：locale =>：fr）＃=> 1 234 567 890,51€

希望這有助於，歡呼！

Answer 3

之前問題的要求發生了變化：

number = 12000 
number_to_currency(number, :precision => 0, :unit => "", :delimiter => number.to_s.length > 4 ? " " : "") # 12 000 

number = 5000 
number_to_currency(number, :precision => 0, :unit => "", :delimiter => number.to_s.length > 4 ? " " : "") # 5000 

number = 1000000 
number_to_currency(number, :precision => 0, :unit => "", :delimiter => number.to_s.length > 4 ? " " : "") # 1 000 000 

number = 20000000 
number_to_currency(number, :precision => 0, :unit => "", :delimiter => number.to_s.length > 4 ? " " : "") # 20 000 000 

問題的要求之後已經改變：

number_to_currency(number, :precision => 0, :unit => "", :delimiter => " ") 

Answer 4

在純Ruby：

"20000000".reverse.chars.each_slice(3).map(&:join).join(' ').reverse 

因此，通過各種手段使用一個輔助方法。